The clinical challenge in subjective memory decline (SMD) is to identify which individuals will present memory deficits. Since its early description from Babinsky, who coined the term 'anosognosia' (i.e., the lack of awareness of deficit), the awareness of cognitive impairment is crucial in clinical neuropsychology. We propose a cognitive model in which SMD and anosognosia can be considered two opposite forms of distorted awareness of cognitive performance and can be accounted for within a model in which consciousness of memory performance can vary in a continuum from normal awareness of performance (preserved or impaired) to anosognosia through a disorder of consciousness related to SMD that we call 'cognitive dysgnosia', i.e., awareness of normal performance as impaired. This model suggests that the neuropsychological assessment of memory performance should always be coupled with a deep evaluation of awareness of the subject's memory profile, which allow to better identify the disorder of consciousness with or without cognitive impairment. In this line, it seems necessary to develop more sensitive neuropsychological tools in order to discriminate, within the SMD, individuals who are likely to develop clinical Alzheimer's disease from those whose memory decline complaint is not associated with an underlying neurodegenerative pathology.

For a Cognitive Model of Subjective Memory Awareness

DALLA BARBA, GIANFRANCO;
2015

Abstract

The clinical challenge in subjective memory decline (SMD) is to identify which individuals will present memory deficits. Since its early description from Babinsky, who coined the term 'anosognosia' (i.e., the lack of awareness of deficit), the awareness of cognitive impairment is crucial in clinical neuropsychology. We propose a cognitive model in which SMD and anosognosia can be considered two opposite forms of distorted awareness of cognitive performance and can be accounted for within a model in which consciousness of memory performance can vary in a continuum from normal awareness of performance (preserved or impaired) to anosognosia through a disorder of consciousness related to SMD that we call 'cognitive dysgnosia', i.e., awareness of normal performance as impaired. This model suggests that the neuropsychological assessment of memory performance should always be coupled with a deep evaluation of awareness of the subject's memory profile, which allow to better identify the disorder of consciousness with or without cognitive impairment. In this line, it seems necessary to develop more sensitive neuropsychological tools in order to discriminate, within the SMD, individuals who are likely to develop clinical Alzheimer's disease from those whose memory decline complaint is not associated with an underlying neurodegenerative pathology.
http://content.iospress.com/articles/journal-of-alzheimers-disease/jad150141
File in questo prodotto:
File Dimensione Formato  
2015 JAD.pdf

non disponibili

Descrizione: Articolo principale
Tipologia: Documento in Versione Editoriale
Licenza: Digital Rights Management non definito
Dimensione 162.44 kB
Formato Adobe PDF
162.44 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11368/2902766
Citazioni
  • ???jsp.display-item.citation.pmc??? 9
  • Scopus 10
  • ???jsp.display-item.citation.isi??? 9
social impact